CBI president John Allan today warned warring MPs to back the deal or face a chaotic no deal Brexit.

"It avoids the wrecking ball that would be a no-deal departure," he declared.

But 37 young entrepreneurs wrote to the CBI demanding it drop support for the deal as "not good enough".

The letter, organised by the Our Future Our Choice campaign, declared: "In private, many business leaders concede that this deal will reduce Britain’s prospects for sustained economic growth and further entrench social mobility issues.

"We are speaking out now because young British business people feel the best interests of our economy rest on the rejection of this deal.

"This deal is simply not good enough for the future of our firms, which collectively employ thousands."

Will Theresa May win the Brexit deal vote?

Theresa May has a Brexit deal, but the danger is looming that it will be defeated in the House of Commons.

Even getting it past her Cabinet forced Esther McVey and Dominic Raab to resign. Now she faces one more hurdle - a vote in Parliament on December 11.

Against the deal

TORY BREXITEERS: There are up to about 80, led by Boris Johnson and Jacob Rees-Mogg, threatening to vote down a deal that keeps Britain trapped in "vassalage" with Brussels. Not all are expected to live up to their threats.

TORY HARD REMAINERS: Only about a dozen, but many - including Justine Greening and Jo Johnson - will vote against, instead wanting a second referendum.

DUP: Theresa May's Northern Irish allies - who she handed £1.5bn - are 10-strong. They say they will vote down the deal.

LABOUR LOYALISTS: About 150 MPs are consistently loyal to Jeremy Corbyn on Brexit. They'll be told to vote against the deal because it doesn't meet Labour's 'six tests'.

LABOUR REMAINERS: There are about 50 hard Remainer Labour MPs. They're likely to oppose the deal to avoid enabling a Brexit.

Key points from UK's 611-page Brexit deal with EU

The Brexit deal agreed by Theresa May and the EU covers two areas: the Withdrawal Agreement, covering the UK's exit from the EU, and the Political Declaration on a Future Framework, which sets out the relationship with the EU after Britain leaves.